One of the best technologies in the TV show "Star Trek: The Next Generation" was the holodeck, in which characters could interact with computer-generated (holographic) characters in a 3D room.

At the time this was the stuff of science-fiction, but like other technologies inspired by Star Trek, we're getting closer to a holodeck-like experience in our own homes.

Witness this video from the Microsoft Research team, showing a proof-of-concept system called IllumiRoom. The IllumiRoom "augments the area surrounding a television with projected visualizations to enhance traditional gaming experiences."

While the video showcases the system with a living room's furniture, it's not that far of a stretch to see people using this system in a completely empty room, thereby expanding visuals even further than what's shown in the video. With additional projectors, how much more 3D could we get with this?